XML 62 R42.htm IDEA: XBRL DOCUMENT v3.25.0.1
Income Tax Disclosure (Tables)
12 Months Ended
Dec. 31, 2024
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
The income tax provision consisted of the following for the years ended December 31, 2024, 2023 and 2022 (in thousands):
 Year Ended December 31,
202420232022
Current:
Federal$— $— $— 
State and Foreign1,314 933 932 
1,314 933 932 
Deferred:
Federal— — — 
State— — — 
Income tax provision$1,314 $933 $932 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
The differences between the effective tax rates reflected in the total provision for income taxes and the U.S. federal statutory rate of 21% for the years ended December 31, 2024, 2023 and 2022, respectively, were as follows (in thousands):
 Year Ended December 31,
202420232022
Provision at the U.S. federal statutory rate$(4,024)$(11,639)$(17,076)
Increase (decrease) resulting from:
Nondeductible expenses1,059 622 215 
Statutory to GAAP income adjustment(34)28 238 
Noncash share-based compensation2,225 3,221 3,971 
Other275 117 (64)
Foreign withholding taxes792 705 506 
Cancellation of debt income— 2,272 — 
Incremental benefits for tax credits(1,776)(1,599)(1,976)
Change in tax rate/income subject to lower tax rates(61)3,208 (865)
Change related to prior tax years(751)(774)(662)
Change in valuation allowance3,609 4,772 16,645 
Income tax provision$1,314 $933 $932 
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
The tax effects of temporary differences and other tax attributes that give rise to significant portions of the deferred tax assets and liabilities as of December 31, 2024 and 2023 are as follows (in thousands):
 Year Ended December 31,
20242023
Noncurrent deferred taxes:
Property and equipment$(374)$(869)
Noncash share-based compensation2,729 3,363 
Disallowed interest expense4,961 7,347 
Amortization1,345 1,850 
Operating lease right-of-use assets(8,821)(8,818)
Operating lease liabilities11,830 12,312 
R&E tax credit carryforwards20,060 18,461 
Capitalized research and development expenses32,642 22,575 
Deferred revenue1,240 849 
Federal Net Operating Losses ("NOLs")83,875 90,964 
State NOLs2,244 2,267 
State R&E tax credits4,157 4,157 
Foreign NOLs17,184 15,132 
Foreign tax credit carryforward1,600 2,033 
Other(2,659)(3,814)
Total noncurrent deferred tax assets172,013 167,809 
Less: Valuation allowance(171,832)(167,632)
Total net deferred tax asset$181 $177